This section is from the book "The Gardener's Monthly And Horticulturist V21", by Thomas Meehan. See also: Four-Season Harvest: Organic Vegetables from Your Home Garden All Year Long.
B., New Jersey, writes: "Attention has several times been called to this subject in the Gardener's Monthly, but I cannot learn where Sumac can be sold if collected. Rhus copallina, which I suppose is the variety used for this purpose, grows here plentifully and if it could always be readily sold, might become a source of profit. I am told by a shoemaker here, that there is always a demand, but that it must be ground, and that Sumac mills are rather expensive. Will you, or some one who is posted, give us information on these points".
[The Sumac used for tanning purposes is the Rhus glabra. We know nothing of the use of R. copallina in this connection. - Ed. G. M].